IRU3137CS IRF [International Rectifier], IRU3137CS Datasheet - Page 4

• Manufacturer Part Number: IRU3137CS
• Description: 8-PIN SYNCHRONOUS PWM CONTROLLER
• Manufacturer: IRF [International Rectifier]

IRU3137
BLOCK DIAGRAM
4
POR
SS/SD
Comp
Vcc
Fb
0.8V
2
8
1
7
20uA
3V
25K
25K
64uA Max
Figure 2 - Simplified block diagram of the IRU3137.
4.25V
3.5V
Vc
Error Amp
0.4V
Ct
Oscillator
www.irf.com
FbLo Comp
Error Comp
Generator
Bias
POR
Reset Dom
S
R
0.8V
3V
POR
Q
2.8V
SS
Vcc
6
5
3
4
Rev. 1.0
06/22/04
HDrv
LDrv
Vc
Gnd